as obama came on, out came that memorable ad from hillary, >> it's 3 a.m. there's a phone in the white house and it's ringing. >> reporter: questioning his ability to lead. >> your vote will decide who answers that call. >> reporter: finally, they were the last two standing for the nomination. the last two on the stage. >> i don't think i'm that bad. >> you're likable enough. >> reporter: after weeks of trying to fight the math, clinton finally admitted she could not break the glass ceiling. >> thanks to you, it's got about 18 million cracks in it. >> reporter: but then, something few expected. the new president tapping his former rival to be one of his team's most important players. there they were, traveling the world. together as the navy s.e.a.l.s. closed in on osama bin laden. and the solemn task of watching the remains of the americans killed in libya returning home. >> it has been a great club ration. >> reporter: even the secretary seems surprised. >> a few years ago it would have been seen as improbable. >> reporter: democracy and service has left